Massachusetts Funeral Director Practice Exam

Veins carry blood in which direction relative to the heart?

1. Away from the heart

2. Towards the heart

3. Back to the lungs

4. Across the body

The correct answer is: Towards the heart

Veins are responsible for carrying deoxygenated blood back to the heart from various parts of the body. This is crucial for the circulatory system as it allows the heart to receive blood that has circulated through the body's tissues. After blood delivers oxygen and nutrients to the cells, it collects carbon dioxide and other waste products. The veins transport this deoxygenated blood, and they are equipped with valves that prevent backflow, ensuring that blood flows efficiently towards the heart. In contrast, arteries carry blood away from the heart, which is why the distinction between veins and arteries is critical in understanding cardiovascular physiology. The other options do not accurately represent the function of veins. For instance, veins do not transport blood away from the heart or across the body in general terms. Instead, their primary role is centered on returning blood to the heart for reoxygenation, after which it can be pumped to the lungs and then back into the circulatory system.